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Electrochemical cell and electrochemical cell with terminal

An electrochemical and battery technology, applied in the field of electrochemical batteries, which can solve problems such as the influence of the operation of motors or actuators

Inactive Publication Date: 2016-09-28
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, the container of the existing electrochemical cell is attracted to the magnet due to its magnetism, which may affect the operation of the motor or actuator

Method used

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  • Electrochemical cell and electrochemical cell with terminal
  • Electrochemical cell and electrochemical cell with terminal
  • Electrochemical cell and electrochemical cell with terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0125] First, as Example 1, an electric double layer capacitor 1 was produced according to the first embodiment. Specifically, it was produced as follows.

[0126] The positive electrode case 20 and the negative electrode case 10 were press-processed using NAS NM17, a stainless steel plate manufactured by NAS Steel Belt (Nasu Kodai Co., Ltd.). The negative electrode case 10 has a circular bottom 10a and side surfaces 10b connected along the outer periphery of the bottom 10a, and forms a concave portion having a circular opening. The positive electrode case 20 has a circular bottom 20 a and side surfaces 20 b connected along the outer periphery of the bottom 20 a to form a concave portion having a circular opening. The diameter of the opening of the side portion 20b is formed larger than the outer diameter of the gasket 32, and the side portion 20b is sealed by caulking the side portion 20b from the outer peripheral side in a state where the gasket 32 ​​fitted into the negativ...

Embodiment 2）

[0129] Next, as Example 2, an electric double layer capacitor 1 was produced according to the second embodiment. Specifically, it was fabricated in the same manner as in Example 1, except that the second electrode 21 was bonded with a conductive adhesive after the protective film 23 made of carbon was formed on the inner bottom surface of the positive electrode case 20 .

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Abstract

A coin type (button type) electrochemical cell is configured of a negative electrode can configuring a negative electrode side and a positive electrode can configuring a positive electrode side. Then, the negative electrode can and the positive electrode can are formed of non-magnetic stainless steel which does not have magnetic properties due to plastic processing. Specifically, the negative electrode can and the positive electrode can are formed by using high manganese stainless steel or SUS305 having a high nickel (Ni) content. In this way, the negative electrode can and the positive electrode can are formed of non-magnetic stainless steel which maintains non-magnetic properties even after being processed into the shape of a coin, and thus it is possible to provide a non-magnetic electrochemical cell, and as a result thereof, it is possible to provide an electrochemical cell which is not affected even at the time of being arranged in the vicinity of a magnet.

Description

technical field [0001] The present invention relates to an electrochemical cell and an electrochemical cell with terminals. For example, it relates to an electrochemical cell using a coin-shaped metal container and an electrochemical cell with terminals. Background technique [0002] Electrochemical batteries such as so-called coin-type batteries or electric double-layer capacitors are widely used in various portable devices including mobile communication devices such as mobile phones and digital cameras, as memory or backup power sources for clock functions (Patent Document 1 ). [0003] Such a coin-type electrochemical cell includes a container for accommodating electrodes or an electrolytic solution, and since the container also functions as a current collector for moving electrons in and out from the electrodes, a metal case is generally used. [0004] Among them, the primary battery uses a cold-rolled steel plate or a stainless steel plate mainly composed of iron. Rec...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01G11/78H01M50/119H01M50/121H01M50/124H01M50/145H01M50/562H01M50/566
CPCH01G11/78H01M2220/30H01M50/109H01M50/145H01M50/566H01M50/119H01M50/562H01M50/121H01M50/124Y02E60/10H01M50/171Y02E60/13H01G11/30H01G11/52H01G11/58H01G11/74
Inventor 小野寺英晴
Owner SEIKO INSTR INC